引发文本文件问题？文本文件的长行从侧面被剪掉？

问题描述

| M使用以下代码进行打印，但是如果我的文本文件中有一些长行，则在打印时它们会从侧面切掉。我在做什么错？

  import java.io.FileInputStream;
    import java.io.FileNotFoundException;

    import javax.print.Doc;
    import javax.print.DocFlavor;
    import javax.print.DocPrintJob;
    import javax.print.PrintException;
    import javax.print.PrintService;
    import javax.print.PrintServiceLookup;
    import javax.print.SimpleDoc;
    import javax.print.attribute.HashPrintRequestAttributeSet;
    import javax.print.attribute.PrintRequestAttributeSet;
    import javax.print.attribute.standard.Copies;
    import javax.print.attribute.standard.MediaSizeName;
    import javax.print.attribute.standard.OrientationRequested;

    public class PrintFileWithSpec {

        public static void printFile(String filename,String printerindx){

        FileInputStream psStream=null;
        int Printerinx=Integer.parseInt(printerindx);
        try {
           psStream = new FileInputStream(filename);
        } catch (FileNotFoundException ffne) {} 
        if (psStream == null) {
            return;
        }   
        DocFlavor psInFormat = null;

        int index=filename.lastIndexOf(\".\");
        String extension=filename.substring(index+1);

        if(extension.equals(\"txt\"))//||extension.equals(\"log\")||extension.equals(\"xml\")||extension.equals(\"htm\")||extension.equals(\"html\"))
        psInFormat = DocFlavor.INPUT_STREAM.AUTOSENSE;

        else if(extension.equals(\"jpg\"))
            psInFormat = DocFlavor.INPUT_STREAM.JPEG;

        else if(extension.equals(\"png\"))
            psInFormat = DocFlavor.INPUT_STREAM.PNG;

        else if(extension.equals(\"gif\"))
            psInFormat = DocFlavor.INPUT_STREAM.GIF; 


        Doc myDoc = new SimpleDoc(psStream,psInFormat,null);  
        PrintRequestAttributeSet aset = 
            new HashPrintRequestAttributeSet();
        aset.add(new Copies(1));
        aset.add(MediaSizeName.ISO_A4); 

        //aset.add(Sides.DUPLEX);
         aset.add(OrientationRequested.PORTRAIT);
        PrintService[] services = 
        PrintServiceLookup.lookupPrintServices(psInFormat,null);
        System.out.println(\"Printer Selected \"+services[Printerinx]);   

        //PrintService defaultService = PrintServiceLookup.lookupDefaultPrintService();

        DocFlavor[] docFalvor = services[Printerinx].getSupportedDocFlavors();
        for (int i = 0; i < docFalvor.length; i++) {
            System.out.println(docFalvor[i].getMimeType());
        }   
        if (services.length > 0) {
           DocPrintJob job = services[Printerinx].createPrintJob();
        try 
           {
            job.print(myDoc,aset);     
              System.out.print(\"Printing Doc\");    
           } catch (PrintException pe)
           {           
               System.out.print(pe);          
           }
        }
        }   
        public static void main(String [] args)
        {       
            printFile(\"D:/testStream.txt\",\"3\");
        }
    }

    

解决方法

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